Unplugging Battery?

[Brah02]

Will unplugging the battery in my X5 cause any issues? Will I need to "register" it as I have seen on some videos?

[Qsilver7]

Battery registration is required when you replace an old battery with a new one. Disconnecting the battery does NOT require registration.

You may lose some settings like time & date...and you'll definitely have to reinitialize the sunroof...instructions are in the built-in iDrive owners manual.

[jmack123]

Originally Posted by Brah02

Will unplugging the battery in my X5 cause any issues? Will I need to "register" it as I have seen on some videos?

Do make sure whenever you unplug the battery that you allow all systems to fully power off. If you don't you can get drivetrain errors etc. after reconnecting.

[Clifton]

Originally Posted by jmack123

Do make sure whenever you unplug the battery that you allow all systems to fully power off. If you don't you can get drivetrain errors etc. after reconnecting.

This!!! There are quite a few posts here where owners ended up frying something (fuses, water pumps, etc.) due to the X5 not being fully shut down.

What seems like a good way to know if the car is asleep is to look to see if the Hazard button is still illuminated. If it's lit, wait.

Also, before you let the car power down, make sure to pop your trunk and possibly the driver's door. Doing this will let you have access to the vehicle without waking it up when you begin the swap.

You most likely have two batteries . Disconnect the both negatives, then both positives. Remove & Replace, then connect both positives followed by each negative.

[jmack123]

Originally Posted by Clifton

This!!! There are quite a few posts here where owners ended up frying something (fuses, water pumps, etc.) due to the X5 not being fully shut down.

What seems like a good way to know if the car is asleep is to look to see if the Hazard button is still illuminated. If it's lit, wait.

Also, before you let the car power down, make sure to pop your trunk and possibly the driver's door. Doing this will let you have access to the vehicle without waking it up when you begin the swap.

You most likely have two batteries . Disconnect the both negatives, then both positives. Remove & Replace, then connect both positives followed by each negative.

Great call on the hazard light, that's exactly what I looked for as it seems to be the last light to go out. Also good call on opening the trunk and leaving it open before disconnecting. One last piece of advice - I would leave my key inside the house somewhere so there is no possibility that you accidentally activate any accessories. If you do this and wait for about 15-20 mins you should be safe.